chol2invData: Dataset Generating Error in Function 'chol2inv'

Description Usage Format


This dataset was added because it generates an error in function 'chol2inv' when trying to invert the variance-covariance matrix 'V' of the mixed model 'value~ID+(Site)'. This dataset and the associated mixed model are part of the unit-test collection of the package.




A data frame with 158 observations on the following 3 variables.

  • value

    The response variable.

  • ID

    Variable with 6 levels corresponding to samples.

  • Site

    Variable with 3 levels corresponding to sites/devices.

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